Rotary engine.



A. 0. HALL v ROTARY ENGINE.

APPLICATION FILED MAB.. 12, 1912.

` Patented Dec. 17', 1912.

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Wawy ff A.' c. HALL.

ROTARY ENGINEl APPLICATION FILED MAB..12, 14912.

1 ,047,208. y Patented Dec. 1'?, 1912.

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www @hmm fUNiiTED STATES PATENT oEEicE.-

'ARTHUR o. HALL, oF HANNIBAL, NEW YORK.'

To all whom t may concern Be it known that I', ARTHUR (LHALL, a citizen of the United States, residing at Hannibal, in thev county of Oswego and Sta-te of New York, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification, reference being had to the accompanying drawings.

This invention'comprehends certain newv and useful improvements in rotary steam engines or turbines7 and the invention has for its primary object a simple, durable and efficient construction of rotary engine of the impulse type, which will be cheap to manufacture, easyto maintain, capable of being readily =reversed and susceptible of t-he greatest amount of highpressure power and speed from a given `amount of fuel when attached or connected to any simple or forced draft boiler with equal results, whether istationary or movable.

The invention also has for one of its inain objects an engine of this type which, in operation, will supply one continuous stream or current of live' steam exhausting from lone compartment into an adjoining compartment, and an engine which will conserve to the highest degree the velocity of the steam, owing to the fact that the moment one chamber or compartment is filled, that instant the preceding compartment in the direction of rotation, will exhaust and the steam will flow directly over to the other side of the rotor.

The invention also has for one of its main objects a simple rotary steam engine having a predetermined number of chambers or compartments, accordingto the size of t-he engine and the horse power it is intended to develo'p, and one in which the steam is not confined in the pockets or chambersof the rotor, but immediately exhausted therefrom without being permitted to lose initial velocity and expansive force.

A further object ofthe invention is an engine of this character in which the exhaustpassages leading from one side of the rotor to the other are laterallyelongated to an extent equal to the width of the compartments or chambers of the rotor, whereby the steam may be passed in the quickest possible nia'nnerfrom one side of the'rotor to the other. Aiid the invention also aims ROTARY ENGINE.

. Speciiication of'Letters Patent. y Patented Dec. 1.7, 1912- l Application filed March 12, 1912. Serial No. 683,307.

to generally improve this class of devices and to render them 4mercally desirable.

With these and other objects in View, as

more useful and comwill more fully appear as the description proceeds, the invention consists inI certain constructions, arrangements and combinations of the parts that I shall hereinafter more fully describe and claim.

For a full understanding of the invention,- reference is to be had to the-following description and accompanyingv drawing in which,

` Figure l is a toplplan View of a rotary engine constructed in accordance with my invention. Fig. 2 is a sectional view on the line 2-2, of Fig. 1. Fig. 3 is a transverse section on the line 3--3, of Fig. 1:. Fil 4 is a horizontal sectional view on the line 4 4, of Fig. 2, and, Fig. 5 is a detail sectional view on the line 5-5, of Fig. 2.

Corresponding and like parts are referred to in the following description and desig nated in the accompanying drawing by like reference characters. l

Referring to the drawing, the numeral 1 y designates the casing of my improved rotary steam engine, the same being preferably sol constructed ina base section 2 supported on any desired foundation or bed and an upper or'cover section 3. The sections may be connected together in any desired way and are formed at their 'opposite sides and at their abutting edges with bearings 4 for the shaft 5 which is provided at one .end with a iy or drive wheel 6. Secured to the -shaft 5, is a rotor7 which embodies two main parts integrally or otherwise connected together, the parts being of different diameters and the smaller and initially acting part being designated 8, while the relatively large portion is designated 9. Each of these 'parts of the rotor 7 verse partitions l0 into a predetermined number of steam chambers or compartments 11 which are preferably packed not only by transverse packing strips 12 that. are preferably spring .pressed out into engagement with the interior wall of the casing 1, but by packing rings 13 which preferably fit in grooves formed in the rims of the rotor and which are provided with lateral nibs or lugs 14 adapted to fit within corresponding sockets formed in the rims. whereby the rings is divided by transwill be compelled to rotate with therotor and the operation of oiling any worn part thereby facilitated.

The upper or cover section 3 of the casing 5 1,is provided on its top with a steam chest which is formed at opposite ends with openings into which oppositely extending supply pipes 16 and 16l extend, whereby to admit steam into the casing in direct contact lo with the chambers of the initially acting` part 8 of the rotor. The cover section 3 of the casing is also formed at equal distances from opposite sides of the steam chest 15 y with laterally elongated ports 17 which are 15 connected by correspondingly shaped pipes 18 with laterally elongatedports 19 leading into the relatively large portion 9 of the rotor.

It is to be particularly noted that the parts are so arranged that the steam'is carried around in the chambers or compartments of the initially acting part 8 of the rotor from the time it enters said compart- "ments only a distance equal to the distance between two adjacent partitions 10, at which time, the. steam is directly and instantly transferred to the chambers of the large portion 9 of the rotor, whereby the steam is exhausted from one compartment and instant-ly transferred to another before it shall have had time to lose its -initial velocity and efficient impulse, and whereby also a continuous stream of steam is produced, instead of successive puffs. It is also to be noted 3,5 that the partitions 10 of the com artments of the larger part 9 ,of the rotor are so .related to the partitions 9 of the initially acting or smaller part 8, that the partitions of one part will register with the ports 17 at ,40 exactly the same time the partitions of the other part register with the ports 19. Hence, the steam will instantly be passed from one compartment to another and by the shortest possible route, whereby it is given no opportunity at all to cool or otherwise lose its velocity and eiiiciency of impulse. The steam is exhausted through the laterally widened port 20, which, in the present instance, is at the bottom of the casing.

From the foregoing description in eonnection with the accompanying drawing, the operation of my improved rotary steam engine, will'be apparent.` In the practical use of the engine, it will be understood that the l rotor may be turned in one direction or the reverse according to whether the steam be admitted into the chest 15 through the supply pipe 16 or the supply pipe 16. Thus the engine can be instantly reversed by opening one pipe and shutting off theother. When the Steam is admitted into the chest 'l 15, it will'll one of the compartments of the 'initially acting part 8 of the rotor and act with impulse on the rotor, and instantly Q5 thereafter the steam will be exhausted through one of the pipes 18 according to the direction in which the rotor is turning, while at the .same time a succeeding compartment or chamber is being filled. `Hence, there will be a continuous flow of the steam from one pocket to an ladjoining pocket and the maximum power of the steam thereby secured, as the steam is passed directly from one conmartment to another, and not compelled to traverse any circuitous route or pass through any valves. i

. It will thus be seen that I have provided a very simple and extremely ellicient rotary steam engine or turbine which will conserve thelfuel supplied and secure a maximum eiiiciency with a minimum amount of fuel expenditure. It will further be noted that with my invention, there is a constant supply of strong` exhaust steam which may be'used for forced draft in connection with 85 portable engines, the exhaust steam being passed into the smoke stack of the boiler just above the tire box, whereby the heat will be generated quickly and evenly and l with less consumption of fuel than is required should the steam be passed into the stack or Hue in successive puffs.

While the accompanying drawing illustrates what I believe to be the preferred embodiment of my invention, it is to be understood that the invention is not limited thereto, but that various changes may be. made in the construction, arrangement and proportions of the parts without departing from the scope of the invention, as defined in the appended claims.

What I claim isz- 1. A rotary engine, con'xprising a casing,

a shaft journaled therein, a rotor mounted on said shaft and embodying two parts of different diameters, each of which parts is divided into a plurality of peripheral steam pockets, the casing being formed with a steam inlet opening comnmnicating with the periphery of the smaller part of the rotor and with a passage leading on the exterior of the casing from the periphery of the smaller part of the rotor directly to the pe, riphery of the larger part of the rotor at a distance less than the eircumfer( :ce of the smaller part of the rotor and the 'casing being further formed with a final exhaust port leading' from the periphery of the larger part of the rotor a distance from said passage less than the circumference of the l larger part of the rotor, whereby steam admitted into the casing will act directly upon the smaller part of the rotor and will be shunte'd direct to the larger part of the rotor before being carried around a complete revelution and will be exhausted from the larger partof the rotor before being carried around a complete revolution therein.

2. A rotary engine of the character described, comprising a casing, a shaft Journaled therein7 a rotor mounted on said shaft and embodying two parts of different diameters, each of Which parts is divided into a plurality of peripheral steam pockets, the easingf being formed with a steam inlet opening leading into the periphery of the smaller part of the rotor and with a passage leadin from said periphery to the periphery of the larger part of the rotor and with an exhaust port leading directly out from the easing from the periphery 'of the larger part of the rotor, the circumferential distance relative to the casing from the inlet port to the iinal exhaust being lessthan the complete circumference of the easing, whereby the steam. Will be admitted into the smaller part of the rotor1 thence shunted directly to the larger part of the rotor and exhausted from the easing before it is carried around in either part of the rotor for a complete. revolution thereof, the ports being so positioned that a pocket or' the smaller part of the rotor willi-instantly) discharge into the vadjoining` pressed packing strips secured'to said partitiops, and packing rings secured to said rims, the rims heine formed with annular grooves receiving said rings and also with sockets opening into said grooves and the rings being formed at predetermined points with nibs fitting` in said sockets.v

'In testimony whereof lf hereunto aiiix my signature in the presence of two witnesses. ARTHUR C; HALL. iVitnesses: f

` BRYCE E. GREEN,

FLOYD G. BARNUM. i 

